I-Cellulose ether uhlobo lwe-polymer compound olutholakala ngokuguqulwa kwamakhemikhali kwe-cellulose yemvelo, enokuncibilika okuhle kakhulu, ukuqina, ukugcinwa kwamanzi kanye nezakhiwo zokwakha ifilimu. Izinhlobo ezivamile ze-cellulose ether zifaka phakathii-hydroxypropyl methylcellulose (HPMC), i-methylcellulose (MC), i-hydroxyethyl cellulose (HEC), i-hydroxyethyl methylcellulose (HEMC), njll. Zisetshenziswa kabanzi ezintweni zokwakha, ikakhulukazi ezinhlelweni zodaka oluxutshwe okomile.
1. Indlela yokusebenza kwe-cellulose ether ku-mortar
Emafomuleni e-mortar yesimanje, i-cellulose ether, njengesithako esiyinhloko samakhemikhali, idlala indima kakhulu kulezi zici ezilandelayo:
1.1. Ukugcinwa kwamanzi okuthuthukisiwe
Ama-molecule e-cellulose ether acebile ngamaqembu athanda amanzi, angamunca futhi avale amanzi angenawo, abambezele ukuhwamuka kwamanzi nokungena kwawo, avumele amanzi ukuthi ahlanganyele ngokugcwele ekusabeleni kokumunca usimende, futhi athuthukise ukusebenza kahle kokwakheka kwamandla okuqala. Lapho akha phezu kwezingxenye ezimunca amanzi ngamandla (njengekhonkrithi evuvukele, izitini), i-cellulose ether ingavimbela ngempumelelo ukumunca amanzi ngokweqile futhi igweme ukuqhekeka kanye nokufaka ufulawa.
1.2. Ukuqina nokuthuthukisa ukusebenza kokwakha
I-cellulose ether ingathuthukisa kakhulu i-viscosity kanye ne-thixotropy yodaka, ukuze udaka lubonise ukugeleza okuhle kanye nokusebenza kahle kokwakhiwa lapho luxutshwa futhi lusetshenziswa, kodwa lunezindawo zokunamathela eziphezulu kanye nezakhiwo zokungasheleli esimweni esingaguquki, ngaleyo ndlela luthuthukise ukushelela kokwakhiwa futhi lunciphise ukugoba.
1.3. Ukuthuthukisa amandla okubopha
Ngokuthuthukisa ukuhlangana kwe-mortar kanye nokusebenza kokubopha okuphakathi kwe-substrate, i-cellulose ether ithuthukisa amandla okubopha kwe-mortar, igwema izinkinga ezifana nokuhlukanisa kanye nokugoba esigabeni sakamuva, futhi ifaneleka kakhulu kuma-adhesive amathayili, ama-mortar azilinganisayo kanye nezinhlelo zokushisa zangaphandle.
1.4. Ukulibazisa isikhathi sokusetha nokuthuthukisa ukusebenza
I-cellulose ether ingandisa isikhathi sokusebenza kwe-mortar ngokufanele, ivumele abasebenzi ukuthi babe nesikhathi esengeziwe sokulungisa nokulungisa ngesikhathi sokwakha, ngenkathi begwema amaphutha okwakha abangelwa ukoma ngaphambi kwesikhathi.
2. Ukusetshenziswa kwe-cellulose ether ezinhlotsheni ezahlukene zezitini
2.1. Ukuplasta udaka
Ukwengeza i-cellulose ether ku-plastering mortar kungathuthukisa ukunamathelana phakathi kwe-mortar nodonga, futhi kuvimbele izinkinga ezifana "nokugoba nokuqhekeka". Ukugcinwa kwayo kwamanzi okuhle kungaqinisekisa futhi ukoma okufanayo kwengqimba yomlotha futhi kuthuthukise umphumela wokuqeda.
2.2. Isinamathelisi sethayela
Izinamathiseli zamathayili zinezidingo eziphezulu zokugcina amanzi kanye nezakhiwo zokungasheleli. I-cellulose ether ingathuthukisa kakhulu amandla ayo okubopha, ivimbele amathayili ukuthi ashelele phansi, futhi iqinisekise umphumela omuhle wokubopha ngemuva kwamathayili lapho amanzi emuncwa khona kancane.
2.3. Udaka oluzilinganisayo
I-Cellulose ether inikeza ukuqina okudingekayo kanye nokugcinwa kwamanzi ku-mortar elingana nomzimba ukuqinisekisa ukubekwa okufanayo ngaphandle kwezinkinga zekhwalithi njengokuphuma kwegazi kanye nokuqhekeka. Izinhlobo ze-cellulose ether ezine-viscosity ephansi zifaneleka kakhulu kulezi zicelo.
2.4. Udaka lokufaka ugesi (uhlelo lwe-EIFS)
Kuhlelo lokuvikela udonga lwangaphandle, i-cellulose ether yengezwa kokubili ku-bonding mortar kanye ne-anti-cracking mortar ukuze kuthuthukiswe ukumelana nokuqhekeka, kuthuthukiswe amandla okubopha, futhi kuthuthukiswe ukuqina nokuzinza kohlelo lonke.
2.5. Udaka lokwakha oluxutshwe okomile
Udaka lokwakha izitini oluxutshwe nowomile luvame ukusetshenziswa ekwakheni izitini. I-cellulose ether ingathuthukisa ukumpompa kwayo, ukugcinwa kwamanzi kanye nokungawi, yenze udaka lufane futhi lugcwale, futhi ithuthukise ubuningi kanye namandla okucindezela kodaka.
3. Izici ezithinta ukusebenza
Ukusebenza kwe-cellulose ether kunomthelela omkhulu ekusebenzeni kokugcina kodaka, okuhlanganisa kakhulu izici ezilandelayo:
Izinga lokuthamba: I-ether ye-cellulose ene-viscosity ephezulu ifaneleka kuma-mortar adinga izakhiwo eziphezulu zokungasheleli, kuyilapho i-viscosity ephansi ifaneleka emikhiqizweni yokuzilinganisa.
Izinga lokushintshana (DS) kanye nokushintshana kwe-molar (MS): Lezi zinhlaka ezimbili zinquma ukuncibilika, ukugcinwa kwamanzi kanye nokuqina kwe-cellulose ether.
Usayizi wezinhlayiya: Impuphu ecolekile kulula ukuyihlakaza ku-mortar, okuthuthukisa ukufana kwayo yonke.
Izinga lokuncibilika: I-cellulose ether encibilika ngokushesha isiza ukuthuthukisa ukusebenza kahle kokukhiqiza kanye nokusebenza kahle kokuxuba.
4. Izincomo zokusetshenziswa kanye nezinyathelo zokuphepha
Khetha i-viscosity efanele kanye nohlobo lwe-cellulose ether ukuze ivumelane nezidingo ezithile zesistimu yodaka.
Inqubo yokuxuba kufanele iqinisekise ukuthi i-cellulose ether ihlakazeke ngokulinganayo ukuze kugwenywe ukuhlangana kwendawo okuthinta ukusebenza.
Lawula inani lokwengeza, ngokuvamile 0.1%-0.5% yesisindo sikasimende. Ukweqisa kakhulu kungathinta amandla nesikhathi sokomisa.
Uma kusetshenziswa nezinye izithasiselo (njengempuphu ye-latex ephinde ihlakazeke, i-ejenti yokunciphisa amanzi, njll.), kufanele kuqashelwe ukuhlolwa kokuhambisana.
Njengenye yezithasiselo eziyinhloko ku-mortar yesimanje exutshwe kahle,i-cellulose ether idlala indima engenakuphikwa ekusebenzeni kokwakhiwa, izakhiwo zemishini kanye nokuqina. Ngokuthuthuka kwezakhiwo eziluhlaza kanye nezakhiwo ezenziwe kusengaphambili, isidingo se-mortar esebenza kahle siyaqhubeka nokukhula, futhi izinhlobo nobuchwepheshe be-cellulose ether nazo zihlala zithuthukiswa. Ukukhethwa okunengqondo kanye nokusetshenziswa kwesayensi kwe-cellulose ether kuzothuthukisa kakhulu ikhwalithi yemikhiqizo ye-mortar kanye nokusebenza kahle kokwakhiwa, okuyisiqondiso esibalulekile sokuthuthukiswa kwamanje kwezinto zokwakha.
Isikhathi sokuthunyelwe: Julayi-10-2025